Explore cybersecurity trends, news and insights from the experts at Black Lotus Labs, the threat research and operations arm of Lumen.
Since the second half of 2020, Lumen Black Lotus Labs® has observed an unsettling number of entities receiving emails containing a threat of sustained DDoS attack unless a Bitcoin ransom was paid. These attacks – known as Ransom Distributed Denial […]
Bolstered by contributions from Black Lotus Labs and others, Microsoft and FS-ISAC recently took court action to disrupt a particularly insidious botnet called TrickBot – a significant source of ransomware and banking credential theft. As the threat intelligence arm of […]
As we’ve previously written, adversaries continue to ramp up DNS-based attacks to support a wide range of criminal activities. As part of our mission to leverage our network visibility to both help protect customers and keep the internet clean, Black […]
Summary The explosion of Internet of Things (IoT) devices has long served as a breeding ground for malware distribution. The inability for users to patch many IoT devices has only compounded this problem, as bad actors continue to evolve tactics […]
Despite the ubiquity of DNS, too many security teams today do not adequately prioritize it as a focus for monitoring and mitigation of risk. As recent security headlines demonstrate, one increasingly common cyberattack employed by malicious actors is DNS tunneling, […]
Over the past several years, Emotet has established itself as a pervasive and continually evolving threat, morphing from a prominent banking trojan to a modular spam and malware-as-a-service botnet with global distribution. After emerging in June 2014 targeting German and […]
Introduction The Necurs botnet has a well-known and sordid history of criminal endeavors. Today, it is regarded as one of the most prolific spam and malware distribution botnets in existence. However, despite its reputation for delivering spam, its operators have […]
Over the past year, CenturyLink Threat Research Labs has been tracking an IoT botnet called “TheMoon”. TheMoon is a modular botnet specifically targeting vulnerabilities in routers within broadband networks. Since its identification in early 2014 [1], the botnet has evolved […]
CenturyLink Threat Research Labs has been tracking the Mylobot botnet, a sophisticated malware family that is categorized as a downloader. What makes Mylobot dangerous is its ability to download and execute any type of payload after it infects a host. […]
The Mirai malware began its life as a weapon in turf wars between feuding video game server operators. In the two years since it debuted, it has seen heavy adoption as a general DDoS attack platform around the world. Although […]
